kirathadoll
30.10.2019 •
Physics
During a football game, a receiver has just caught a pass and is standing still. before he can move, a tackler, running at a velocity of +4.2 m/s, grabs and holds onto him so that they move off together with a velocity of +2.3 m/s. if the mass of the tackler is 125 kg, determine the mass of the receiver in kilograms. assume momentum is conserved.
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Ответ:
103.261kg
Explanation:
Assume m to be mass of the receiver
Momentum before =(125*4.2)-m*0
Momentum after =2.3(125+m)
525=287.5+2.3m
m=237.5/3.3
m=103.261kg
Ответ:
Step-by-step explanation: